Traslada el foco de la selección a un punto especificado. El ancla de la selección no se mueve. La selección será desde el ancla hasta el nuevo focus regardless of direction.
sel.extend( parentNode, offset)
parentNode
offset
parentNode
hasta donde el foco se colocará.SelectionSelection.addRange()Selection.collapse()Selection.collapseToEnd()Selection.collapseToStart()Selection.containsNode()Selection.deleteFromDocument()Selection.extend()Selection.getRangeAt()Selection.modify()Selection.removeAllRanges()Selection.removeRange()Selection.selectAllChildren()Selection.selectionLanguageChange()Selection.toString()AttrCDATASectionCharacterDataChildNodeCommentCustomEventDOMConfigurationDOMErrorDOMErrorHandlerDOMExceptionDOMImplementationDOMImplementationListDOMImplementationRegistryDOMImplementationSourceDOMLocatorDOMObjectDOMParserDOMStringDOMTimeStampDOMTokenListDOMUserDataDocumentDocumentFragmentDocumentTypeElementElementTraversalEntityEntityReferenceEventEventTargetHTMLCollectionMutationObserverNodeNodeFilterNodeIteratorNodeListNonDocumentTypeChildNodeProcessingInstructionPromiseResolverRangeTextTextDecoderTextEncoderTimeRangesTreeWalkerTypeInfoUserDataHandlerXMLDocument